Hi Andrew, I am sure you can have success with peppers like like cayenne and a small sweet pepper variety. There are a lot of sweet snacking pepper varieties now that are very productive. In the past, I grew Hungarian wax peppers, Not the hot ones. If you want to try something interesting Rocoto or Manzano (Capsicum pubescens)might overwinter well in your area, they like cool weather, so they would do well in a protected spot.